What is "naulobatus"

Naulobatus was the name - or, perhaps, the title - of a chieftain of the various peoples who took part in the major seaborne incursion into the eastern Mediterranean of 267-8 AD now referred to as the Herulian Invasion. He is the only such leader for whom there is any record. "Naulobatus" is the Latinised form by which he was known to the Romans some centuries after his death. His actual name is unknown as is his ethnic origin. However, the Heruli seem to have been a Germanic group as opposed to the Iranian Sarmatae and Alani with whom they mingled in their homelands to the north of the Black Sea. They are sometimes associated with their Goth neighbours.